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Move 'Examples' section down in the podman-volume-create man page 

Fix #26355

Signed-off-by: Jarek Górny <jaroslaw.gorny@gmail.com>
This commit is contained in:
Jarek Górny 2025-06-13 10:53:29 +02:00
parent f69f92cdf7
commit 93d66542d4
1 changed files with 28 additions and 28 deletions
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56
docs/source/markdown/podman-volume-create.1.md
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@ -69,6 +69,34 @@ This option is mandatory when using the **image** driver.
When not using the **local** and **image** drivers, the given options are passed directly to the volume plugin. In this case, supported options are dictated by the plugin in question, not Podman.
## QUOTAS
`podman volume create` uses `XFS project quota controls` for controlling the size and the number of inodes of builtin volumes. The directory used to store the volumes must be an `XFS` file system and be mounted with the `pquota` option.
Example /etc/fstab entry:
```
/dev/podman/podman-var /var xfs defaults,x-systemd.device-timeout=0,pquota 1 2
```
Podman generates project IDs for each builtin volume, but these project IDs need to be unique for the XFS file system. These project IDs by default are generated randomly, with a potential for overlap with other quotas on the same file
system.
The xfs_quota tool can be used to assign a project ID to the storage driver directory, e.g.:
```
echo 100000:/var/lib/containers/storage/overlay >> /etc/projects
echo 200000:/var/lib/containers/storage/volumes >> /etc/projects
echo storage:100000 >> /etc/projid
echo volumes:200000 >> /etc/projid
xfs_quota -x -c 'project -s storage volumes' /<xfs mount point>
```
In the example above we are configuring the overlay storage driver for newly
created containers as well as volumes to use project IDs with a **start offset**.
All containers are assigned larger project IDs (e.g. >= 100000).
All volume assigned project IDs larger project IDs starting with 200000.
This prevents xfs_quota management conflicts with containers/storage.
## EXAMPLES
Create empty volume.
@ -101,34 +129,6 @@ Create image named volume using the specified local image in containers/storage.
# podman volume create --driver image --opt image=fedora:latest fedoraVol
```
## QUOTAS
`podman volume create` uses `XFS project quota controls` for controlling the size and the number of inodes of builtin volumes. The directory used to store the volumes must be an `XFS` file system and be mounted with the `pquota` option.
Example /etc/fstab entry:
```
/dev/podman/podman-var /var xfs defaults,x-systemd.device-timeout=0,pquota 1 2
```
Podman generates project IDs for each builtin volume, but these project IDs need to be unique for the XFS file system. These project IDs by default are generated randomly, with a potential for overlap with other quotas on the same file
system.
The xfs_quota tool can be used to assign a project ID to the storage driver directory, e.g.:
```
echo 100000:/var/lib/containers/storage/overlay >> /etc/projects
echo 200000:/var/lib/containers/storage/volumes >> /etc/projects
echo storage:100000 >> /etc/projid
echo volumes:200000 >> /etc/projid
xfs_quota -x -c 'project -s storage volumes' /<xfs mount point>
```
In the example above we are configuring the overlay storage driver for newly
created containers as well as volumes to use project IDs with a **start offset**.
All containers are assigned larger project IDs (e.g. >= 100000).
All volume assigned project IDs larger project IDs starting with 200000.
This prevents xfs_quota management conflicts with containers/storage.
## MOUNT EXAMPLES
`podman volume create` allows the `type`, `device`, and `o` options to be passed to `mount(8)` when using the `local` driver.